Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Em que ano o vice-primeiro-ministro Mariano Rajoy Brey assumiu o cargo?
 ###Tabelas: CREATE TABLE 4a_members (4a_members_id AUTO_INCREMENT PRIMARY KEY, High School VARCHAR, Location VARCHAR, Founded INT, Affiliation VARCHAR, Enrollment INT, Nickname VARCHAR, Division VARCHAR) CREATE TABLE international_tourism_expenditure (international_tourism_expenditure_id AUTO_INCREMENT PRIMARY KEY, Rank 2012 INT, Country VARCHAR, UNWTO Region VARCHAR, International tourism expenditure 2011 VARCHAR, International tourism expenditure 2012 VARCHAR, % change VARCHAR) CREATE TABLE men's_doubles_performance_timeline (men's_doubles_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 2004 VARCHAR, 2005 VARCHAR, 2006 VARCHAR, 2007 VARCHAR, 2008 VARCHAR, 2009 VARCHAR, 2010 VARCHAR, 2011 VARCHAR) CREATE TABLE may_bumps (may_bumps_id AUTO_INCREMENT PRIMARY KEY, Year INT, Finish position VARCHAR, 1st day VARCHAR, 2nd day VARCHAR, 3rd day VARCHAR, 4th Day VARCHAR) CREATE TABLE list_of_deputy_prime_ministers_of_spain (list_of_deputy_prime_ministers_of_spain_id AUTO_INCREMENT PRIMARY KEY, Deputy Prime Minister VARCHAR, Took office INT, Left office VARCHAR, Prime Minister VARCHAR, Term VARCHAR, Party VARCHAR)  
SELECT SUM Took office FROM list_of_deputy_prime_ministers_of_spain WHERE Deputy Prime Minister = mariano rajoy brey